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SUSE-SU-2022:2878-1

Опубликовано: 23 авг. 2022
Источник: suse-cvrf

Описание

Security update for python-lxml

This update for python-lxml fixes the following issues:

  • CVE-2022-2309: Fixed NULL pointer dereference due to state leak between parser runs (bsc#1201253).

Список пакетов

Image SLES15-SP1-SAP-Azure-LI-BYOS-Production
python3-lxml-4.7.1-150100.6.6.1
Image SLES15-SP1-SAP-Azure-VLI-BYOS-Production
python3-lxml-4.7.1-150100.6.6.1
Image SLES15-SP1-SAPCAL-Azure
python3-lxml-4.7.1-150100.6.6.1
Image SLES15-SP1-SAPCAL-EC2-HVM
python3-lxml-4.7.1-150100.6.6.1
Image SLES15-SP1-SAPCAL-GCE
python3-lxml-4.7.1-150100.6.6.1
SUSE Linux Enterprise Module for Public Cloud 15
python3-lxml-4.7.1-150100.6.6.1
python3-lxml-devel-4.7.1-150100.6.6.1
python3-lxml-doc-4.7.1-150100.6.6.1

Ссылки

Описание

NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn't be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered.

Затронутые продукты
Image SLES15-SP1-SAP-Azure-LI-BYOS-Production:python3-lxml-4.7.1-150100.6.6.1
Image SLES15-SP1-SAP-Azure-VLI-BYOS-Production:python3-lxml-4.7.1-150100.6.6.1
Image SLES15-SP1-SAPCAL-Azure:python3-lxml-4.7.1-150100.6.6.1
Image SLES15-SP1-SAPCAL-EC2-HVM:python3-lxml-4.7.1-150100.6.6.1
Ссылки